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libdb/docs/api_reference/C/lockstat_print.html
Gregory Burd eff277ac23 Release 5.2.28 on 6/10/2011
2011-09-13 13:44:24 -04:00

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>DB_ENV-&gt;lock_stat_print()</title>
<link rel="stylesheet" href="apiReference.css" type="text/css" />
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
<link rel="start" href="index.html" title="Berkeley DB C API Reference" />
<link rel="up" href="lock.html" title="Chapter 6.  The DB_LOCK Handle" />
<link rel="prev" href="lockstat.html" title="DB_ENV-&gt;lock_stat()" />
<link rel="next" href="lockvec.html" title="DB_ENV-&gt;lock_vec()" />
</head>
<body>
<div xmlns="" class="navheader">
<div class="libver">
<p>Library Version 11.2.5.2</p>
</div>
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">DB_ENV-&gt;lock_stat_print()</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="lockstat.html">Prev</a> </td>
<th width="60%" align="center">Chapter 6. 
The DB_LOCK Handle
</th>
<td width="20%" align="right"> <a accesskey="n" href="lockvec.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="sect1" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h2 class="title" style="clear: both"><a id="lockstat_print"></a>DB_ENV-&gt;lock_stat_print()</h2>
</div>
</div>
</div>
<pre class="programlisting">#include &lt;db.h&gt;
int
DB_ENV-&gt;lock_stat_print(DB_ENV *env, u_int32_t flags); </pre>
<p>
The <code class="methodname">DB_ENV-&gt;lock_stat_print()</code> method displays the locking subsystem
statistical information, as described for the <code class="methodname">DB_ENV-&gt;lock_stat()</code>
method. The information is printed to a specified output channel (see
the <a class="xref" href="envset_msgfile.html" title="DB_ENV-&gt;set_msgfile()">DB_ENV-&gt;set_msgfile()</a>
method for more information), or passed to an application callback
function (see the
<a class="xref" href="envset_msgcall.html" title="DB_ENV-&gt;set_msgcall()">DB_ENV-&gt;set_msgcall()</a>
method for more information).
</p>
<p>
The <code class="methodname">DB_ENV-&gt;lock_stat_print()</code> method may not be called before the
<a class="xref" href="envopen.html" title="DB_ENV-&gt;open()">DB_ENV-&gt;open()</a> method is
called.
</p>
<p>
The <code class="methodname">DB_ENV-&gt;lock_stat_print()</code> <span>
<span>
method returns a non-zero error value on failure and 0 on success.
</span>
</span>
</p>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="id3905558"></a>Parameters</h3>
</div>
</div>
</div>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="id3905561"></a>flags</h4>
</div>
</div>
</div>
<p>
The <span class="bold"><strong>flags</strong></span> parameter must be set to 0
or by bitwise inclusively <span class="bold"><strong>OR</strong></span>'ing
together one or more of the following values:
</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p><a id="lockstat_print_DB_STAT_ALL"></a>
<code class="literal">DB_STAT_ALL</code>
</p>
<p>
Display all available information.
</p>
</li>
<li>
<p><a id="envsat_print_DB_STAT_CLEAR"></a>
<code class="literal">DB_STAT_CLEAR</code>
</p>
<p>
Reset statistics after displaying their values.
</p>
</li>
<li>
<p><a id="envsat_print_DB_STAT_LOCK_CONF"></a>
<code class="literal">DB_STAT_LOCK_CONF</code>
</p>
<p>
Display the lock conflict matrix.
</p>
</li>
<li>
<p><a id="envsat_print_DB_STAT_LOCK_LOCKERS"></a>
<code class="literal">DB_STAT_LOCK_LOCKERS</code>
</p>
<p>
Display the lockers within hash chains.
</p>
</li>
<li>
<p><a id="envsat_print_DB_STAT_LOCK_OBJECTS"></a>
<code class="literal">DB_STAT_LOCK_OBJECTS</code>
</p>
<p>
Display the lock objects within hash chains.
</p>
</li>
<li>
<p><a id="envsat_print_DB_STAT_LOCK_PARAMS"></a>
<code class="literal">DB_STAT_LOCK_PARAMS</code>
</p>
<p>
Display the locking subsystem parameters.
</p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="id3905802"></a>Class</h3>
</div>
</div>
</div>
<p>
<a class="link" href="env.html" title="Chapter 5.  The DB_ENV Handle">DB_ENV</a>,
<a class="link" href="lock.html" title="Chapter 6.  The DB_LOCK Handle">DB_LOCK</a>
</p>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="id3905825"></a>See Also</h3>
</div>
</div>
</div>
<p>
<a class="xref" href="lock.html#locklist" title="Locking Subsystem and Related Methods">Locking Subsystem and Related Methods</a>
</p>
</div>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="lockstat.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="lock.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="lockvec.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">DB_ENV-&gt;lock_stat() </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> DB_ENV-&gt;lock_vec()</td>
</tr>
</table>
</div>
</body>
</html>
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